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A block of mass m and initial speed collides elastically with a block of mass 2m which is initially at rest. Assuming the positive direction is to the right and that there is no friction between the surface and the blocks, what is the velocity of the block of mass m after the collision?
an electron is released from rest at the negative plate of a parallel plate capacitor. the charge per unit area on each
A long uniform rod which weighs 5.00*10power2 N leans against a smooth vertical wall. It leans by an angular of 60.0 degrees with respect to the horizontal floor. The rod is 1.5 meters long.
An AM radio station broadcasts isotropic ally (equally in all directions) with an average power of 3.20 kW. A dipole receiving antenna 65.0 cm long is at a location 4.00 miles from the transmitter. Calculate the amplitude of the emf that is induced b..
Two 10-cm-diameter charged rings face each other, 16.0 cm apart. What is the electric field strength at the center of the left ring
Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.1 cm, and the radius of the nozzle is 0.47 cm. The speed of the water in the pipe is 0.67 m/s. Treat the water as an ideal fluid, and determine the absolu..
A 100 W lightbulb is plugged into a standard 120 V outlet. How much does it cost per month (30 days) to leave the light turned on continuosly? Assume electrical energy costs 7.5/kWh. (Enter dollars with no unit) What is the resistance of the bulb? Wh..
A lamp is designed to operate at a temperature of 3100K. If the lamp is operated at a higher voltage that raises its temperature to 3500K
if the kinetic energy of a neutron confined inside a cubic box is 10 mev in its ground state calculate the size of the
A 5.00 g object moving to the right at+20.0 cm/s makes an elastic head-oncollision with a 10.0 g object that isinitially at rest. Find the velocity of each object after the collision
A 1130kg car and 4020kg truck undergo a perfectly inelastic collision. Find the velocity of the wreckage immediately after the collision
Let us model the electric behavior of such a molecule by a pair of ±1.60 × 10-19-C charges connected by a spring with force constant 8.29 × 10-4 N/m, Find the charge separation distance in an electric field of 6.41 × 105 N/C
a 10g block with a charge of 810-5 c is placed in an electric field e 3000i-600j nc what are the magnitude and
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